Fix podcast configuration.

(cherry picked from commit 72741d68)
Signed-off-by: Rémi Duraffort <ivoire@videolan.org>

modules/gui/qt4/dialogs/podcast_configuration.cpp

@@ -72,15 +72,14 @@ void PodcastConfigDialog::accept()
         urls +=  ui.podcastList->item(i)->text();
         if( i != ui.podcastList->count()-1 ) urls += "|";
     }
-    const char *psz_urls = qtu( urls );
-    config_PutPsz( p_intf, "podcast-urls", psz_urls );
+    config_PutPsz( p_intf, "podcast-urls", qtu( urls ) );
     config_SaveConfigFile( p_intf, "podcast" );
     vlc_object_t *p_obj = (vlc_object_t*)
                           vlc_object_find_name( p_intf->p_libvlc,
                                                 "podcast", FIND_CHILD );
     if( p_obj )
     {
-        var_SetString( p_obj, "podcast-urls", psz_urls );
+        var_SetString( p_obj, "podcast-urls", qtu( urls ) );
         vlc_object_release( p_obj );
     }